The new ELEMENT TRACK is an upgraded replacement of the successful and reliable 6015 model. New features include : larger and improved readout on LCD display, airspace warnings, more tactile keypad for easier use with gloves. It combines the same integrated super sensitive 20 channel GPS into a entry level instrument but with high end features. Automatic tracklog recording up to 50 flights and 291 hrs, user customizable audio and flight function, track compass with wind speed and direction, USB interface, FlyChart compatible, and user upgradeable, 40 hour battery life on just 2 AA, and all in the same case size as the 6005 ! Optional leg strap or cockpit mount $25.